Can You Find The Code?

Answer is 394.

Here’s An Example Why 394 is The Answer:

Step 1: for the first two codes, 2 is in position 1. It cannot be a correct digit whilst also being in it’s place *AND* not. This rules out 2 as a possibility. New possibility list: 1 3 4 5 6 7 8 9

Step 2: codes two and three are not immediately useful. and do not single out a particular number. However, code 4 provides with a list of numbers that are not in the code. New possibility list: 1 3 4 6 9

Step 3: Step 2 has allowed us to reassess code 2, we now know 4 is one of the correct numbers, and additionally, we now know it can only be in position 3. Answer: x x 4, possibility list: 1 3 6 9

Step 4: with the previous two steps, we can reassess code 1. we know the correct code has 4 in position 3. This rules out 1 as a correct number. In tandem with step 1, this leaves us with one conclusion, 9 is right and in its place. Answer x 9 4, New possibility list: 3, 6

Step 5: the previous step tells us that 9 is in the answer code. That means neither 5 nor 6 are in the answer code according to the last clue. The only remaining possible number is 3, leaving us with Answer: 394.

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